If an attempt is made to free more bytes than have been allocated
a dev_info message is output and the number of bytes to free is
adjusted to the allocated size.
Telling the user this happened is just noise. Remove the message.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbobbi@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If an attempt is made to free more bytes than have been allocated
a dev_info message is output and the number of bytes to free is
adjusted to the allocated size.
Telling the user this happened is just noise. Remove the message.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbobbi@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Due to the 'while(count < num_bytes)' the computed 'block_size' will
always be a value greater than 0.
Remove the unreachable dev_warn and the (block_size < 0) test.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbobbi@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The condition that would trigger this BUG_ON can never occur.
The 'munge_count' will be equal to 'buf_write_count' if all the data
in the buffer has been munged.
Or, the 'munge_count' will be less than the 'buf_write_count' if any
partial samples in the buffer were not munged.
The 'munge_count' will never be greater than the 'buf_write_count'.
Remove the unnecessary BUG_ON.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbobbi@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For aesthetic reasons, reorder the prototypes for the exported
comedi_buf_* functions in comedidev.h to follow the function
declarations in comedi_buf.c.
Also, change a couple of the return values from 'unsigned' to
'unsigned int' to match the value actually returned.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This helper function is only called by the comedi core in comedi_buf.c
and comedi_fops.c. For aesthetic reasons, move it to comedi_buf.c and
remove the inline. Move the prototype from comedidev.h to comedi_internal.h
so it's not exposed outside the comedi core.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This helper function is only called in comedi_buf.c. Move it there and
make it static so it's not exposed globally.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reword the comment about the need for the smp_mb().
Clarify the check to make sure the number of bytes to free is not
more than the number of bytes allocated.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Clarify the check to make sure the number of bytes to allocate is
available.
Reword the comment about the need for the smp_rmb().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For aesthetic reasons, cleanup this function a bit.
Change the (async == NULL) test to simply (!async).
Reword the comment about the need for the smp_rmb()..
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the helper comedi_buf_write_n_allocated() to clarify the check
to make sure the number of bytes to free is not more than the number
of bytes allocated.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Refactor this function so there is a single return point and only
one BUG_ON check. The BUG_ON needs to be looked at to see if it
can be safely removed.
Clarify the test in the munge loop that checks for a block copy
that would extend pass the end of the prealloc_buf.
Reword the comment about the need for the smp_wmb().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This function is only called by comedi_buf_put(). Remove it and just
call __comedi_buf_write_alloc() directly with the strict flag set.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The only difference between comedi_buf_write_alloc() and the *_strict()
version is that the *_strict() one will only allocate the chunk if it
can completely fulfill the request.
Factor out the common code and add a flag parameter to indicate the 'strict'
usage. Change the exported functions so they are just wrappers around the
common function.
Cleanup the common function a bit and use the comedi_buf_write_n_available()
helper to determine the number of bytes available.
comedi_buf_write_n_available() is not used outside this module so make it
static. Since the only caller is __comedi_buf_write_alloc(), which will
always have a valid async pointer and already has a memory barrier, we
can remove the unnecessary (async == NULL) test as well as the smp_mb().
Also, the rounding of the sample size can be removed since the caller
does not need it.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For aesthetic reasons, rename this function to comedi_buf_reset(). This
makes all the asynchronous buffer functions have the same namespace.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The function comedi_buf_alloc() first frees any allocated buffer then,
optionally, allocates a new buffer.
Factor out the new buffer allocation code to a new function. This
allows reducing the indent level and makes the code a bit cleaner.
Also, cleanup to factored out code to make it a bit more concise.
Use a local variable for the current comedi_buf_page being allocated.
This cleans up the ugly line breaks used to keep the lines < 80 chars.
Move the #ifdef'ery for the page protection determination out of the
vmap() call.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The function comedi_buf_alloc() uses two loops to free the async buffer's
buf_page_list. The first one is used at the beginning to deallocate the
current buffer. The second is used to cleanup if the new buffer allocation
fails.
Factor out the common code to a new function.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Create a new file, comedi_buf.c, to hold all the comedi_async buffer
functions. Currently they are all in drivers.c and really don't have
any association with that source file.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
All the comedi drivers have been converted to use the request_firmware()
hotplug interface. The COMEDI_DEVCONFIG ioctl support for passing the
firmware blob as 'aux_data' is no longer required.
Remove the feature and give the user a dev_warn message if it is
attempted.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Setting `info = comedi_file_info_from_minor(minor)` and `dev =
comedi_dev_from_minor(minor)` in the same function is a bit of a waste.
The latter function is just a call of the former followed by a
conditional return of an embedded pointer (`info->device`) or NULL. The
former function uses a spin-lock which is where the wastfulness comes
in.
Move the "followed by a conditional return of an embedded pointer" part
into a new function `comedi_dev_from_file_info` and call this instead of
`comedi_dev_from_minor()` in the places where
`comedi_file_info_from_minor()` is also called.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is no way to specify the value of iva_img and since this code
is not being used, remove it.
This analysis resulted from a report by
Chen Gang <gang.chen@asianux.com>, mentioning that the existing code
was wrongly specifying the size to be copied.
Signed-off-by: Omar Ramirez Luna <omar.ramirez@copitl.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Instead of ioremapping SCM registers, use the correspondent layer
to write into them.
This allows us to get rid of a layer violation, since the registers
are no longer touched by driver code.
Signed-off-by: Omar Ramirez Luna <omar.ramirez@copitl.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On both counts, sym_name could be printed uninitialized, this
is solved by moving the pr_* statement to be triggered if the
value is assigned.
Reported-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Omar Ramirez Luna <omar.ramirez@copitl.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The value allocated doesn't match the one that is meant to be
stored, resulting in corruption of memory for longer strings
that can't be held in such space.
Fix by allocating the correct byte value for the string meant to
be stored.
Signed-off-by: Omar Ramirez Luna <omar.ramirez@copitl.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The name of the firmware (drv_datap->base_img) could potentially
become equal to 255 valid characters (size of exec_file), this
will result in an out of bounds write, given that the 255 chars
along with a '\0' terminator will be copied into an array of
255 chars.
Produce an error on this cases, because the driver expects the NULL
ending to be among the 255 char limit.
Reported-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Omar Ramirez Luna <omar.ramirez@copitl.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
IIR_RS232 is zero so "if (IIR_RS232 == (b_ret & IIR_RS232))" is always
true so RS232 was always chosen by default. The test should be
"if (0 == (b_ret & 0x30)) { ". The other tests should also be in that
format.
This does change how the code works... If 0x30 is set then it now
defaults to RS232 instead of RS485.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Avoid dereverencing the ERR_PTR() by shifting the dereference down a
couple lines.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The sb105x driver calls parport_pc_probe_port() which isn't defined if
PARPORT_PC isn't enabled. Protecting it with CONFIG_PARPORT is not good
enough, must protect it with CONFIG_PARPORT_PC.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 2e254212 broke listing of available network names, since it
clamped the length of the returned SSID to WLAN_BSSID_LEN (6) instead of
WLAN_SSID_MAXLEN (32).
https://bugzilla.kernel.org/show_bug.cgi?id=52501
Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
Cc: stable <stable@vger.kernel.org> # 3.4+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Two tiny fixes
* A build warning fix due to signed / unsigned comparison
* Missing sign extension in adis16080
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)
iQIcBAABAgAGBQJQ8UF7AAoJEFSFNJnE9BaIkQ8QALtHT5H9JWRFaDl0Sxu9708R
1C6FCL9ympMF7BgybIfEE6ThkjNEWk42RoEFF0iWM7Hcm5k8SV0U/EE6fpqfafPC
0PKuq2iPZOxbH6dmF6oTvSmKJE73bgD9z/WSc8cqxfrkifBF3AjLeUZOFunq6Rwx
/SxD6/a/p24VgcSJ1swI+X0hl0Dyo1UgYgskxBK0ylg7nf2dyDTZokCCGcE9YKFQ
HJ53a6qQ8TCy6CDrtKOPqIeuMjDzOV3Sc882Q/s3M3ATN8iqs4QXDnl5AtgQVRRY
kvsenmNnWKoPUR/ZQzdtp/qgQ2/PYOMv4HlfZ1UKaYnNk449/mVUvcrGiy3uOlM4
xgjJiy+saJsf056nN1eR4bHM/B3yTuHN/e5uhkNQhy0m3SPkbumjNpL5bW7tG6tW
my6DM/67E8TeK88P6bswpNDo9dfgiu1j6z6d7dNj7IBZVgXHrHegYwMtDAuJWZrT
C0qz6j12g0YEmFD8VThli23jhHphd5c5n+S97NgdQH4tnOR2f1KXO9bzPW/p1Hqa
34jXZ9TYed2zKfI0rZ7iueJLGuFw0R+tFZQCunaTPA+YK6ggdGMqjJqDobgX71Z6
7md+4Y/9bPoHpgY1Q1LN4/6mByLdX8/JQHDe9pvQB/kYxEmDuCjpSwsyl8BWzJGS
eA8/yNjL/5pkFsGhpDAL
=t+tK
-----END PGP SIGNATURE-----
Merge tag 'iio-fixes-for-3.8b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
Second round of fixes for IIO post 3.8-rc1
Two tiny fixes
* A build warning fix due to signed / unsigned comparison
* Missing sign extension in adis16080
Guests can trigger MMIO exits using dcbf. Since we don't emulate cache
incoherent MMIO, just do nothing and move on.
Reported-by: Ben Collins <ben.c@servergy.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Tested-by: Ben Collins <ben.c@servergy.com>
CC: stable@vger.kernel.org
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Add support for the UART device present in Broadcom TruManage capable
NetXtreme chips (ie: 5761m 5762, and 5725).
This implementation has a hidden transmit FIFO, so running in single-byte
interrupt mode results in too many interrupts. The UART_CAP_HFIFO
capability was added to track this. It continues to reload the THR as long
as the THRE and TSRE bits are set in the LSR up to a specified limit (1024
is used here).
Signed-off-by: Stephen Hurd <shurd@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit bbb63c514a (drivers:tty:fix up
ENOIOCTLCMD error handling) changed the default return value from tty
ioctl to be ENOTTY and not EINVAL. This is appropriate.
But in case of TIOCGPTN for the old BSD ptys glibc started failing
because it expects EINVAL to be returned. Only then it continues to
obtain the pts name the other way around.
So fix this case by explicit return of EINVAL in this case.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Florian Westphal <fw@strlen.de>
Cc: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@vger.kernel.org> # 3.7+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This fixes all instances of
"Please, no spaces at start of a new line"
"Please, no spaces before tabs"
Please note that I probably got the warning names wrong,
but they should be close enough for usage here :)
Additional post-commit note: There is one comment on line 230ish in slic.h
that appears to have lost it's formatting. It was fine when I was working
in Geany, but it caught my eye in the below diff. Sorry if it actually happened!
Signed-off-by: Cruz Julian Bishop <cruzjbishop@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The errors fixed are all instances of
"ERROR: do not use assignment in if condition"
Signed-off-by: Cruz Julian Bishop <cruzjbishop@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
I'm assuming that "CRC shit reg" is referencing the CRC register/registry.
Please ignore this patch if "shit" is actually in context
Signed-off-by: Cruz Julian Bishop <cruzjbishop@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is a static checker fix. From the context it looks like there
should be a break here.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some config regs get set whenever adjust_link() is called. Change this
so that these registers only get set when the link state changes to UP.
Also remove unnecessary second assignment of boot_coma.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently when ipuv3 is probed we have:
imx-ipuv3 40000000.ipu: DI0 base: 0x5e040000 remapped to a08aa000
imx-ipuv3 40000000.ipu: DI1 base: 0x5e048000 remapped to a08ac000
imx-ipuv3 40000000.ipu: IPUv3EX probed
The DI base address and the remapped address are more interesting for debug
purposes, so mark this message as dev_dbg instead.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This was changed to bcm_flash2x_cs_info instead of bcm_flash_cs_info
when we got rid of the typedefs. bcm_flash2x_cs_info is quite a bit
larger than bcm_flash_cs_info (436 bytes instead of 96) so it would
corrupt user memory and it's an info leak.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is a memory leakage in variable sg if it goes to error.
Signed-off-by: Cong Ding <dinggnu@gmail.com>
Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix the following warning when building with W=1 option:
drivers/staging/imx-drm/ipu-v3/ipu-common.c: In function 'ipu_remove':
drivers/staging/imx-drm/ipu-v3/ipu-common.c:1145:19: warning: variable 'res' set but not used [-Wunused-but-set-variable]
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add support for OMAP5 processor. The main differences are that the OMAP5
has 2 containers, one for 1D and one for 2D. Each container is 128MiB in
size.
Signed-off-by: Andy Gross <andy.gross@ti.com>
Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Added power management capabilities into the omapdrm and DMM drivers.
During suspend, we don't need to do anything to maintain the state of
the LUT. We have all the necessary information to recreate the mappings
of the GEM object list maintained by the omapdrm driver.
On resume, the DMM resume handler will first reprogram the LUT to point
to the dummy page. The subsequent resume handler in the omapdrm will call
into the DMM and reprogram each of the buffer objects. This will ensure
that all of the necessary objects will be pinned into the DMM properly.
Order of suspend/resume handlers is done by device creation. We create
the DMM device before the omapdrm, so the correct order is maintained.
Signed-off-by: Andy Gross <andy.gross@ti.com>
Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
there is only one line inside the if and for blocks, so the braces are
not needed
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
